Landscape Design School:  Series XXVI, Course III September 23 & 24, 2019 12 CEUs.  Code: 001.  Fee: $145 by Sept. 1; $165 after Sept. 1, 2019. These courses offer an opportunity to learn from professional landscape architects and horticulturists about how successful landscapes are designed. Taking all 4 parts of this course earns 48 CEUs and qualifies Master Gardeners for ...